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Puzzled. People, who judge it unethical to contemplate herd immunity from natural infection, argue it's uncertain how long immunity lasts. But natural immunity is probably better than vaccine immunity. If natural immunity doesn't last, then vaccines won’t work either. What then?
I'm not arguing that we should let the virus take its course. I certainly think we should shield the vulnerable until a vaccine is available. But I don't see we can vaccinate everybody in the world, perhaps yearly. We haven't managed to eliminate measles; it only takes one shot.
In addition, "Vaccines will not be proven to be safer for children and young people than the infection for some years, if ever".https://www.bmj.com/content/370/bmj.m3702/rr-2 …
This maybe true (though maybe not as vaccine immunity may last longer), but to gain immunity from a vaccine doesn’t kill people in the process as the development of herd immunity does.
1/2 Christine, I think this is one of the major misconceptions about #SARS_CoV_2 immunity. Natural immunity may *strongly* differ from vaccine induced immunity. Take Zoster - Shingrix protects majority of vaccinees whereas natural ‚immunity‘ does not.
We know that immunity to endemic Corinaviruses is shortlived, we’ll have to see about SARS-CoV-2. However, there’s not a shadow of a doubt that vaccines will be essential to overcome the pandemic. Relying on ‚natural‘ immunity will lead to tremendous suffering.
"natural immunity is probably better than vaccine immunity."-- nope! Where did you get this idea from?
To my knowledge, this is the case for most pathogens. An example:https://www.nature.com/articles/s41577-019-0143-6 …
Yes, biopharma are trying to rewrite the textbooks.
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